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Inconsistent lighting on trees when placed/painted on

Hey Everyone.

I'm hoping someone can help me, if you check out the picture the trees on the left where placed down and positioned normally and the lighting seems to be fine. but the trees on the right have been painted on using the foliage tool. ive rebaked the lighting but its still showing like there is no shadows.

is there anything i need to check when using the foliage tool that could be causing this to happen?

Thanks in advance.

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Product Version: UE 4.10
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asked Feb 03 '16 at 09:08 AM in Rendering

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avatar image Narghile Feb 03 '16 at 09:27 AM


Are these speed trees or just simple meshes?

Regards Narg

avatar image Lee85UK Feb 03 '16 at 11:51 AM

Hey Narg,

Its a tree that been exported from speed tree.


avatar image Narghile Feb 03 '16 at 12:12 PM

Ok, so this is the Conifer tree.

Ok, give me a sec,

Do you have a light mass bounds attached?


avatar image Narghile Feb 03 '16 at 12:27 PM


In 10, did a few test with my speed trees.

No issue here, might bee something that you have done. :(


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Hi Lee,

If you're using a Directional Light set to Moveable (dynamic) and a Skylight set to movable, make sure to rebuild lighting to clear any indirect lighting cache values. You should then only have direct lighting from the main light source, and the skylight will handle the fake bounce lighting.

This should be able to clear up the inconsistency you're seeing with the trees that are painted. This would at least be where I would start.


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answered Feb 03 '16 at 09:26 PM

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Tim Hobson ♦♦ STAFF
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It looks like one uses lightmaps while the other uses dynamic lighting. I believe that by default objects placed with the foliage tool are lit dynamically, while regularly placed ones use lightmaps which could explain the different results you are seeing.

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answered Feb 03 '16 at 01:38 PM

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avatar image Tim Hobson ♦♦ STAFF Feb 03 '16 at 09:27 PM

By default static lighting is on for all foliage items and uses their original lightmap resolution value, which can often be pretty high. Typically with foliage you wouldn't want to use lightmaps anyway for an exterior scene, at least not for foliage that should move.

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